[GEM] THE GEM MESSENGER, Volume 29, Number 25

[Newsletter Editor]

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     THE GEM MESSENGER
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Volume 29, Number 25
Jul.22,2019

Announcement submission website: http://aten.igpp.ucla.edu/gem/messenger_form/

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Table of Contents

1. AGU Fall Meeting Session SM002: Advances in Magnetoseismology

2. AGU Fall Meeting Session SM008: The Current State of Knowledge of the Earth's Ring Current

3. AGU Fall Meeting Session SM013: Geospace Research from Polar Environments

4. AGU Fall Meeting Session SM018: Space weather under extreme driving

5. AGU Fall Meeting Session SM019: Magnetic Reconnection and the Resulting Ionospheric Signatures

6. AGU Fall Meeting Session SM030: Nonlinear wave-particle interaction in the Earth’s magnetosphere

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1. AGU Fall Meeting Session SM002: Advances in Magnetoseismology
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From: Alfredo Del Corpo, Jiwon Choi, and Banafsheh Ferdousi (alfredo.delcorpo at aquila.infn.it)

We invite you to submit an abstract to a new AGU session entitled "Advances in Magnetoseismology." More detailed information can be found on the website at:

https://agu.confex.com/agu/fm19/prelim.cgi/Session/81333

SM002: Advances in Magnetoseismology

Plasma waves naturally occur in the Earth's magnetosphere as an effect of its interaction with the solar wind. Seismological methods, such as normal-mode oscillations and signals travel time analysis, applied to plasma waves form the discipline of magnetoseismology and are diagnostic tools to sound our space environment.

Normal-mode magnetoseismology makes use of geomagnetic field line resonances detected by either ground-based magnetometers or satellites to infer the plasma mass density of the inner magnetosphere. Travel-time magnetoseismology concerns the propagation of impulsive signals and is used to remotely monitor sudden impulses excited by interplanetary shocks at the magnetopause or substorm onsets in the magnetotail.

This session will focus on both aspects of magnetoseismology that combined together can potentially bring to a global monitoring system of the magnetosphere. Studies based on ground-based and satellites observations, as well as simulations are welcome.

Section: SPA-Magnetospheric Physics

Index Terms:
2740 Magnetospheric configuration and dynamics
2768 Plasmasphere
2790 Substorms


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2. AGU Fall Meeting Session SM008: The Current State of Knowledge of the Earth's Ring Current
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From: Jerry W. Manweiler, A. Rualdo Soto-Chavez, and Kunihiro Keika (Manweiler at ftecs.com)

Please consider submitting an abstract to session SM008 – The current state of knowledge of the Earth’s Ring-Current, at the AGU 2019 Fall Meeting to be held in San Francisco, 9 Dec 2019 – 13 Dec 2019.  The abstract submission deadline is Wed July 31, 2019 at 11:59 PM EDT. A description of the session is given below and also see the session description at the following URL: https://agu.confex.com/agu/fm19/prelim.cgi/Session/83887 

SM008: The current state of Knowledge of the Earth’s Ring-Current.

Abstract: Formation and decay of Earth's ring-current is a critical topic in magnetospheric physics. Reacting to external forcing from variability in Space Weather, Earth's ring-current has profound impacts on Earth's magnetosphere and on dynamics of trapped radiation. As ions/electrons are injected into the inner magnetosphere, they become energized, and drift forming the Ring Current. Coupling between anisotropic plasma and waves (EMIC, chorus, etc.) comprise critical aspects of development/decay of the Ring Current. Other processes, such as ionospheric coupling, charge exchange, and diffusion play key roles in the lifetimes of Ring Current particles. Which effects critically drive the dynamics varies significantly between regions and represent key outstanding questions especially in transition regions where coupled systems and non-linear dynamics play important roles. This session seeks observational and theoretical contributions using data from current missions: Van Allen Probes, Arase (ERG), MMS, THEMIS, Cluster, coupled with new results derived from modeling of ring current processes. 

Conveners:
Jerry W. Manweiler. Fundamental Technologies, LLC. Lawrence, KS. USA
A.Rualdo. Soto-Chavez. New Jersey Institute of Technology, NJ. USA
Kunihiro Keika, Graduate School of Science, The University of Tokyo, Japan.

Thank you very much for considering submitting your talk and/or poster to our session.
Jerry W. Manweiler, Ph.D.
Senior Scientist
Fundamental Technologies, LLC
Lawrence, KS 66046


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3. AGU Fall Meeting Session SM013: Geospace Research from Polar Environments
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From: Hyomin Kim (NJIT), Andrew Gerrard (NJIT), Sarah Jones (GSFC/NASA), Matthew Zettergren (ERAU) (hmkim at njit.edu)

Dear Colleagues,

We invite you to submit an AGU abstract to the co-organized (SM/AE/A/SA/SH sections) session on "Geospace Research from Polar Environments". More detailed information can be found on the website at https://agu.confex.com/agu/fm19/prelim.cgi/Session/80336

SM003: Geospace Research from Polar Environments

Session Description:
The uniqueness of polar regions for conducting geospace research has been acknowledged for decades.  This is because instrumentation located at high-latitudes allows access to a natural laboratory for studying the Earth's atmosphere, its space environment, and solar-generated interplanetary structures.  Such research may include, but not limited to, the study of aurora, induced electrical currents, geomagnetic fields, ionospheric electrodynamics, ion-neutral coupling, temperature and winds in the neutral atmosphere, and atmospheric waves, all of which improve our understanding of the mechanisms which couple solar and interplanetary processes to the terrestrial environment.  This session solicits papers on recent advances in space physics, aeronomy and space weather focusing on the polar regions.  Studies discussing conjugate aspects of geospace phenomena in both hemispheres and incorporating polar observations in the global context are highly encouraged due to the advancement in these fields in recent years.   


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4. AGU Fall Meeting Session SM018: Space weather under extreme driving
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From: Li-Jen Chen (li-jen.chen at nasa.gov)

Hello Colleagues!

You are invited to envision together the next-generation space-weather modeling for extreme driving conditions. 

Submit your abstract to SM018:
Kinetic effects in solar wind-magnetosphere-ionosphere coupling during extreme magnetic storms.
https://agu.confex.com/agu/fm19/prelim.cgi/Session/83234

Let us know if you would like to be considered as a potential panelist for the session.

Cheerfully yours,
Li-Jen Chen (NASA/GSFC)
Marilia Samara (NASA/GSFC)
Chuanfei Dong (PPPL)


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5. AGU Fall Meeting Session SM019: Magnetic Reconnection and the Resulting Ionospheric Signatures
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From: Gerard Fasel, David Sibeck, Desheng Han (gfasel at pepperdine.edu)

Dear Colleagues, 

We would like to invite you to submit an abstract to our AGU session:
SM019 - Magnetic Reconnection on the Dayside AND the Resulting Ionospheric Signatures.

Sincerely,

Gerard Fasel, David Sibeck, and Desheng Han

Session link:
https://agu.confex.com/agu/fm19/prelim.cgi/Session/82409

Session Description:
Solar-terrestrial coupling generates transient signatures at the dayside magnetopause, in the cusps, and in the high-latitude dayside ionosphere.  Understanding these events will provide insight into the coupling mechanisms, e.g. magnetic reconnection.  Spacecraft provide observations from regions inside and outside the magnetopause.  Ground-based instruments supply information concerning ionospheric plasma flow, precipitating particles that cause the dayside aurora, field-aligned and ionospheric currents from vantage points at the footprints of magnetic field lines that map to the magnetopause.
This session focuses on studies of the solar-terrestrial coupling processes at the dayside magnetosphere and the resulting ionospheric signatures; these include poleward moving auroral forms, convection flow channels, flux transfer events, and bursts of precipitating electrons that cause cosmic noise absorption.  The priority is to identify the mechanisms driving the events and their significance via studies combining observations from spacecraft and ground-based instruments within the context of results from theoretical models and computer simulations.


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6. AGU Fall Meeting Session SM030: Nonlinear wave-particle interaction in the Earth’s magnetosphere
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From: Lunjin Chen (Lunjin.Chen at utdallas.edu)

Dear Colleagues,

We kindly invite you to participate in the following AGU session on nonlinear wave particle interaction, which aims to assess the contribution of nonlinear wave particle interaction to various magnetosphere dynamics.

Session Title:
SM030 - Nonlinear wave-particle interaction in the Earth’s magnetosphere

Session Link:
https://agu.confex.com/agu/fm19/prelim.cgi/Session/72921

Session Description:
Modern spacecraft missions (THEMIS, Van Allen Probes, MMS, Arase, etc.) and comprehensive numerical models have significantly improved our understanding of the magnetosphere dynamics and the critical role of wave-particle resonant interactions for these dynamics. However, many aspects of this interaction are described only with linear and quasi-linear approaches, which fail to describe the generation of various observed wave emissions (e.g., chorus waves) and rapid particle acceleration by very intense coherent waves. This session aims to bring together specialists on data analysis with comprehensive techniques, allowing for the identification of nonlinear wave-particle resonances, and on state-of-the-art theoretical models quantifying such nonlinear resonant contributions to radiation belt dynamics and other regions of the magnetosphere.

Conveners:
Lunjin Chen (UTDallas), Yuto Katoh (Tohoku University), Xiaojia Zhang (UCLA), and Peter H. Yoon (Univ. of Maryland)

Sincerely,
Lunjin Chen


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